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Andrade, Marcelo B., Shaunna M. Morrison, Adrien J. Di Domizio, Mark N. Feinglos, و Robert T. Downs. Robertsite, Ca(2)Mn(III) (3)O(2)(PO(4))(3)·3H(2)O. International Union of Crystallography, 2012.

Andrade, Marcelo B., et al. Robertsite, Ca(2)Mn(III) (3)O(2)(PO(4))(3)·3H(2)O. International Union of Crystallography, 2012.